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The first and last terms of an AP are 4 and 81 respectively. If the common difference is 7, How many terms are there in the AP and what is their sum?

This is the Important question based on Arithmetic progression Chapter of R.S Aggarwal book for ICSE & CBSE Board. In ...Read more

An Important question based on Arithmetic progression Chapter of R.S Aggarwal book for ICSE & CBSE Board. Here An AP, ...Read more